Achaogen’s Zemdri Approved for UTI; But 2nd Indication Rejected

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FDA has approved an Achaogen NDA for Zemdri (plazomicin) for adults with complicated urinary tract infections (cUTI), including pyelonephritis, caused by certain Enterobacteriaceae in patients who have limited or no alternative treatment options. However, the agency issued a complete response letter that refused to approve the drug for treating bloodstream infection. The letter stated that the CARE study does not provide substantial evidence of effectiveness of plazomicin for the proposed indication, the company says. It intends to meet with FDA to determine whether there is a “feasible resolution” to address the agency’s concerns.

 

Zemdri is an intravenous infusion, administered once daily. The approval was supported in part by data from the EPIC (Evaluating Plazomicin In cUTI) clinical trial, which was the first randomized controlled study of once-daily aminoglycoside therapy for treating cUTI, including pyelonephritis, Achaogen says. In the trial, the drug demonstrated non-inferiority to meropenem for the co-primary efficacy endpoints of composite cure (clinical cure and microbiological eradication) in the microbiological modified intent-to-treat population, it says.

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